The Smart Landlord's Guide to Splitting Utilities in a San Gabriel Valley Duplex — Costs, Methods & Local Contractors
To split utilities for a 2-unit house in the San Gabriel
Valley, there are two main approaches. The affordable option is usually
submetering, while full separation with utility company meters is significantly
more expensive.
1. Most Affordable Way: Submetering (分表)
This method keeps one main utility account but installs
private submeters for each unit to track usage.
How it works:
- One
master meter remains with the utility company
- Separate
submeters are installed for electricity, water, and possibly gas
- The
owner allocates utility costs based on usage
Advantages:
- Lower
cost
- Faster
installation
- No
need for full utility company approval in many cases
- Works
well for duplex or rental setups
Typical costs in San Gabriel Valley:
- Electricity
submeter: $300–$1,000
- Water
submeter: $500–$1,500
- Gas
submeter: similar range but more complex
2. Full Separation: Utility Company Meters (独立户头)
This involves installing completely separate meters and
accounts for each unit.
Scope of work:
- New
electrical service or panels
- Separate
gas lines
- Separate
water lines
- City
permits and inspections
- Coordination
with utility companies such as Southern California Edison and SoCalGas
Disadvantages:
- High
cost: typically $5,000–$20,000+
- Longer
timeline
- More
complex permitting
3. Contractors in San Gabriel Valley
Electrical contractors:
- Smart
Plug EV
Phone: (323) 788-5849 - Harrison
Electric & Solar
Phone: (562) 695-8321 - Cruz
Electric
Phone: (626) 757-4950 - Yireh
Electric Inc.
Phone: (626) 222-5140 - Just
Electric
Phone: (626) 625-9021
Plumbing contractors (water and gas):
- I Love
Sewers Rooter And Plumbing Sewer Specialties Inc
Phone: (626) 764-2570 - Mr.
Rooter Plumbing of South San Gabriel
Phone: (323) 325-5725 - Kustom
Plumbing
Phone: (323) 312-8948 - California
Utility Services
Phone: (800) 400-1727
4. Practical Recommendation
For a typical duplex in the San Gabriel Valley:
- Electricity:
install a subpanel and submeter
- Water:
install inline submeters
- Gas:
often shared or split by formula to reduce cost
This combination provides the best balance between cost and
functionality for rental purposes.
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